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Kristin D Pfeifauf, Kamlesh B Patel, Alison Snyder-Warwick, Gary B Skolnick, Sibyl Scheve, Sybill D Naidoo
OBJECTIVE: This study aims to provide an understanding of the ways cleft palate (CP) and craniofacial teams address billing, administration, communication of clinical recommendations, appointment scheduling, and diagnosis-specific protocols. DESIGN: An online clinic administration survey was developed using data from an open-ended telephone questionnaire. The online survey was distributed by e-mail to the American Cleft Palate-Craniofacial Association (ACPA) nurse coordinator electronic mailing list, used regularly by the ACPA and its members to communicate with teams...
January 1, 2018: Cleft Palate-craniofacial Journal
Marije K Verheul, Stefan Böhringer, Myrthe A M van Delft, Jonathan D Jones, William F C Rigby, Ryan W Gan, V Michael Holers, Jess D Edison, Kevin D Deane, Koen M J Janssen, Johanna Westra, Mikael Brink, Solbritt Rantapää-Dahlqvist, Tom W J Huizinga, Annette H M van der Helm-van Mil, Diane van der Woude, Rene E M Toes, Leendert A Trouw
OBJECTIVE: In rheumatoid arthritis(RA), the autoantibodies anti-citrullinated protein antibodies(ACPA) and rheumatoid factor(RF) are commonly used to aid RA diagnosis. Although these autoantibodies are mainly found in RA, their specificity is not optimal. It is therefore difficult to identify RA patients, especially in very early disease, based on the presence of ACPA and RF alone. Also, anti-carbamylated protein(anti-CarP) antibodies have diagnostic and prognostic value as the presence of anti-CarP antibodies associates with joint damage in RA patients and with future RA development in arthralgia patients...
May 21, 2018: Arthritis & Rheumatology
Dan Murphy, Katy Bellis, David Hutchinson
OBJECTIVES: To quantify exposure to vapour, gas, dust and fumes (VGDF) and smoking in male rheumatoid arthritis (RA) and investigate impact on rheumatoid factor (RF) and anti-citrullinated protein antibody (ACPA) levels. DESIGN: A retrospective observational study. SETTING: The Royal Cornwall Hospital Trust, UK. A single university hospital setting. PARTICIPANTS: 726 men followed up between February 2015 and August 2016, fulfilling RA diagnostic criteria...
May 17, 2018: BMJ Open
Lianne J N Kraal, Marieke L Nijland, Kristine L Germar, Dominique L P Baeten, Ineke J M Ten Berge, Cynthia M Fehres
Rheumatoid arthritis (RA) is a chronic inflammatory disease of synovial joints, characterized by the presence of the highly disease-specific anti-citrullinated protein antibodies (ACPA) in approximately 70% of patients. Epstein-Barr virus (EBV) has previously been suggested to be involved in the pathophysiology of RA. However, given the high incidence of EBV in the general population and the difficulty of detecting initial infection, providing a direct link between EBV infection and RA development has remained elusive...
2018: PloS One
Daniela Sieghart, Alexander Platzer, Paul Studenic, Farideh Alasti, Maresa Grundhuber, Sascha Swiniarski, Thomas Horn, Helmuth Haslacher, Stephan Blüml, Josef Smolen, Günter Steiner
Anti-citrullinated protein antibodies (ACPA) and rheumatoid factor (RF) are the most commonly used diagnostic markers of rheumatoid arthritis (RA). These antibodies are predominantly of the immunoglobulin (Ig) M (RF) or IgG (ACPA) isotype. Other subtypes of both antibodies-particularly IgA isotypes and other autoantibodies-such as RA33 antibodies-have been repeatedly reported but their diagnostic value has still not been fully elucidated. Here, we investigated the prevalence of IgA, IgG, and IgM subtypes of RF, ACPA, and RA33 antibodies in patients with RA...
2018: Frontiers in Immunology
Eric Toussirot, Matthieu Béreau, Charline Vauchy, Philippe Saas
Immune mediated diseases (IMDs) are complex chronic inflammatory diseases involving genetic and environmental factors. Salt intake has been proposed as a diet factor that can influence the immune response. Indeed, experimental data report the influence of sodium chloride on the differentiation of naive CD4+ T cells into IL-17 secreting T helper (Th) cells (Th17 cells), by a mechanism involving the serum glucocorticoid kinase-1 (SGK1) that promotes the expression of the IL-23 receptor (IL-23R). The IL-23/IL-23R is critical for pathogenic inflammatory Th17 cell differentiation...
2018: Frontiers in Physiology
Keshi Fujio
Rheumatoid arthritis(RA)has been a disease of unknown cause for many years. However, the etiology is becoming obvious due to the use of biological products in recent years, arthritis model mice in basic immunology and genome wide analysis in genetics etc. In particular, the knowledge of what is effective and what is not effective for biological products directly reveals the pathology of RA. It has also been found that the cytokine dependence of arthritis model mice and RA is not necessarily the same. It is pointed out that the difference may be derived from the presence of anti-citrullinated protein antibody(ACPA)...
2018: Clinical Calcium
Kosaku Murakami, Tsuneyo Mimori
Rheumatoid arthritis(RA)is one of the systemic autoimmune diseases characterized by progressive joint destruction with chronic synovitis. In the synovium, activated osteoclasts with plenty of inflammatory cytokines and metalloproteinases induce bone and cartilage destruction. Anti-cyclic citrullinated protein antibodies(ACPA)was recognized not only as a diagnostic marker but also as direct inducer of synovitis. In addition, environmental factors and background of daily life also contribute to the pathogenesis of RA, especially smoking and periodontitis are considered to be important factors for disease activities...
2018: Clinical Calcium
Anna Karin Hedström, Lars Klareskog, Lars Alfredsson
INTRODUCTION: Smoking has consistently been associated with increased risk of developing rheumatoid arthritis (RA). The aim of this study was to estimate the influence of passive smoking on the risk of developing anti-cyclic citrullinated peptide antibodies (ACPA)-positive and ACPA-negative RA. METHODS: A population-based case-control study using incident cases of RA was performed in Sweden, and the study population in this report was restricted to include never-smokers (589 cases, 1764 controls)...
May 3, 2018: Annals of the Rheumatic Diseases
Debbie M Boeters, Leendert A Trouw, Annette H M van der Helm-van Mil, Hanna W van Steenbergen
BACKGROUND: The presence of autoantibodies is considered an important characteristic of rheumatoid arthritis (RA); therefore, both anticitrullinated protein antibodies (ACPA) and rheumatoid factor (RF) are included in the 2010 classification criteria for rheumatoid arthritis (RA). However, a considerable number of RA patients lack both these autoantibodies. Recently, several novel autoantibodies have been identified but their value for the classification of RA patients is unclear. Therefore, we studied the value of novel autoantibodies using the presence of anticarbamylated protein (anti-CarP) antibodies as an example for predicting RA development in patients with undifferentiated arthritis (UA)...
May 3, 2018: Arthritis Research & Therapy
R M Ten Brinck, R E M Toes, A H M van der Helm-van Mil
BACKGROUND: Anti-citrullinated protein antibodies (ACPA) are associated with more severe joint erosions in rheumatoid arthritis (RA), but the underlying mechanism is unclear. Recent in vitro and murine studies indicate that ACPAs can directly activate osteoclasts leading to bone erosions and pain. This study sought evidence for this hypothesis in humans and evaluated whether in patients with arthralgia who are at risk of RA, ACPA is associated with erosions (detected by magnetic resonance imaging (MRI)) independent of inflammation, and also independent of the presence of rheumatoid factor (RF)...
May 3, 2018: Arthritis Research & Therapy
James M Gwinnutt, Charlotte A Sharp, Deborah P M Symmons, Mark Lunt, Suzanne M M Verstappen
OBJECTIVE: To assess baseline predictors of long-term functional disability in patients with inflammatory arthritis (IA). METHODS: We conducted a systematic review of the literature from 1990 to 2017 using MEDLINE and EMBASE. Studies were included if (i) they were prospective observational studies, (ii) all patients had IA with symptom duration ≤2 years at baseline, (iii) follow-up was at least 5 years, and (iv) baseline predictors of HAQ score at long-term follow-up (i...
March 15, 2018: Seminars in Arthritis and Rheumatism
Hongwei Guo, Tianqiu Huang, Jun Zhao, Hongwen Chen, Guo Chen
Short-chain carboxylic acids and their derivatives are widely utilized in all aspects of our daily life. Given their specific functional groups, these molecules are also utilized in fine chemical synthesis. The traditional petroleum-based carboxylate production methods are restricted by petrol shortage and environmental pollution. Renowned for their more sustainable processes than traditional methods, biotechnological methods are preferred alternatives and have attracted increasing attention. However, the industrial application of biotechnological methods is currently limited by low factors: low productivity and low yield...
April 20, 2018: Applied Microbiology and Biotechnology
Stefano Alivernini, Daniela Pugliese, Barbara Tolusso, Laura Bui, Luca Petricca, Luisa Guidi, Luisa Mirone, Gian Ludovico Rapaccini, Francesco Federico, Gianfranco Ferraccioli, Alessandro Armuzzi, Elisa Gremese
Objective: Paradoxical arthritis under tumour necrosis factor inhibitor (TNF-i) for inflammatory bowel disease (IBD) has been described. This study aims to evaluate the histological features of paired synovial tissue (ST) and colonic mucosa (CM) tissue in patients with IBD developing paradoxical arthritis under TNF-i. Methods: Patients with IBD without history of coexisting joint involvement who developed arthritis under TNF-i were enrolled. Each patient underwent ST biopsy and ileocolonoscopy with CM biopsies...
2018: RMD Open
Diahann T S L Jansen, Paul Emery, Josef S Smolen, Rene Westhovens, Manuela Le Bars, Sean E Connolly, June Ye, René E M Toes, Tom W J Huizinga
Objective: To evaluate the effects of the T-cell costimulation blocker abatacept on anti-citrullinated protein antibodies (ACPA) and rheumatoid factor (RF) in early rheumatoid arthritis (RA), and associations between changes in serological status and clinical response. Methods: Post hoc analysis of the phase III AGREE study in methotrexate (MTX)-naïve patients with early RA and poor prognostic factors. Patients were randomised to abatacept (~10 mg/kg intravenously according to weight range) or placebo, plus MTX over 12 months followed by open-label abatacept plus MTX for 12 months...
2018: RMD Open
Ronak Tilvawala, Son Hong Nguyen, Aaron J Maurais, Venkatesh V Nemmara, Mitesh Nagar, Ari J Salinger, Sunil Nagpal, Eranthie Weerapana, Paul R Thompson
Increased protein citrullination is linked to various diseases including rheumatoid arthritis (RA), lupus, and cancer. Citrullinated autoantigens, a hallmark of RA, are recognized by anti-citrullinated protein antibodies (ACPAs) which are used to diagnose RA. ACPA-recognizing citrullinated enolase, vimentin, keratin, and filaggrin are also pathogenic. Here, we used a chemoproteomic approach to define the RA-associated citrullinome. The identified proteins include numerous serine protease inhibitors (Serpins), proteases and metabolic enzymes...
March 21, 2018: Cell Chemical Biology
Sang-Tae Choi, Kwang-Hoon Lee
Both rheumatoid factor (RF) and anti-cyclic citrullinated peptide antibody (ACPA) are associated with poor radiologic outcomes in patients with rheumatoid arthritis (RA). In general, RA patients positive for RF or ACPA (SPRA) are considered to manifest an aggressive disease course compared with seronegative RA patients (SNRA). However, the relationship between seropositivity and measures of disease severity other than radiologic outcome is disputed. In this study, we sought to compare the clinical presentations and treatment outcomes of SNRA and SPRA patients...
2018: PloS One
Ilfita Sahbudin, Luke Pickup, Peter Nightingale, Gina Allen, Zaeem Cader, Ruchir Singh, Paola de Pablo, Christopher D Buckley, Karim Raza, Andrew Filer
Objectives: Tenosynovitis (TS) is common in early arthritis. However, the value of US-defined TS in predicting RA development is unclear. We assessed the predictive utility of US-defined TS alongside US-defined synovitis and clinical and serological variables in a prospective cohort of early arthritis patients. Methods: One hundred and seven patients with clinically apparent synovitis of one or more joint and symptom duration ⩽3 months underwent baseline clinical, laboratory and US assessment of 19 bilateral joint sites and 16 bilateral tendon compartments...
April 3, 2018: Rheumatology
Albert Bondt, Lise Hafkenscheid, David Falck, T Martijn Kuijper, Yoann Rombouts, Johanna M W Hazes, Manfred Wuhrer, Radboud J E M Dolhain
OBJECTIVES: Patients with autoantibody-positive rheumatoid arthritis (RA) are less likely to experience pregnancy-induced improvement of RA disease activity (DAS28-C reactive protein (CRP)) compared with patients with autoantibody-negative RA. Anti-citrullinated protein antibodies (ACPAs) are the most specific autoantibodies for RA. We previously demonstrated that disease improvement is associated with changes in total IgG glycosylation, which regulate antibody effector function. Therefore, we sought to analyse the ACPA-IgG glycosylation profile during pregnancy with the aim to understand the lower change of pregnancy-induced improvement of the disease in patients with autoantibody-positive RA...
April 3, 2018: Annals of the Rheumatic Diseases
Malik J Raynor, Jung-Hyeob Roh, Stephen G Widen, Thomas G Wood, Theresa M Koehler
Bacillus anthracis produces three regulators, AtxA, AcpA, and AcpB, which control virulence gene transcription and belong to an emerging class of regulators termed "PCVRs" (Phosphoenolpyruvate-dependent phosphotransferase regulation Domain-Containing Virulence Regulators). AtxA, named for its control of toxin gene expression, is the master virulence regulator and archetype PCVR. AcpA and AcpB are less well studied. Reports of PCVR activity suggest overlapping function. AcpA and AcpB independently positively control transcription of the capsule biosynthetic operon capBCADE, and culture conditions that enhance AtxA level or activity result in capBCADE transcription in strains lacking acpA and acpB...
March 31, 2018: Molecular Microbiology
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